Finding the Fourth Proportional to 5,281,981.95, 7,289,408.14 and 2,958,738.69
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Solution
The fourth proportional to 5,281,981.95, 7,289,408.14 and 2,958,738.69 is: 4,083,212.34
Step by Step Solution
- Step 1: Write the proportion equation
5,281,981.95 : 7,289,408.14 = 2,958,738.69 : x - Step 2: Convert to fraction form
5,281,981.95/7,289,408.14 = 2,958,738.69/x - Step 3: Cross multiply
5,281,981.95x = 7,289,408.14 × 2,958,738.69 - Step 4: Simplify right side
5,281,981.95x = 21,567,453,886,597.36 - Step 5: Solve for x
x = 21,567,453,886,597.36/5,281,981.95 - Step 6: Final answer
x = 4,083,212.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.